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and i simply want to store the value of a particular one in a variable.

I know that you can do a document.formName.elementName.value and get it, but the thing is, I'm not sure which element I'll be requiring in my post so I'd like to to use a variable in my value select.

document.formName.elementName + number.value

of course doesn't work... variables are not usable in such a case. I'm unable to select the value with an getElementBy('elementName' + number).value either (of course I'm adding the proper id to the element).

How does one select the value of a textarea using a variable name such as "elementName" + number?